diff options
Diffstat (limited to 'src/cairo-gl-dispatch.c')
| -rw-r--r-- | src/cairo-gl-dispatch.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/src/cairo-gl-dispatch.c b/src/cairo-gl-dispatch.c deleted file mode 100644 index a49199dbb..000000000 --- a/src/cairo-gl-dispatch.c +++ /dev/null @@ -1,273 +0,0 @@ -/* cairo - a vector graphics library with display and print output - * - * Copyright © 2010 Linaro Limited - * - * This library is free software; you can redistribute it and/or - * modify it either under the terms of the GNU Lesser General Public - * License version 2.1 as published by the Free Software Foundation - * (the "LGPL") or, at your option, under the terms of the Mozilla - * Public License Version 1.1 (the "MPL"). If you do not alter this - * notice, a recipient may use your version of this file under either - * the MPL or the LGPL. - * - * You should have received a copy of the LGPL along with this library - * in the file COPYING-LGPL-2.1; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA - * You should have received a copy of the MPL along with this library - * in the file COPYING-MPL-1.1 - * - * The contents of this file are subject to the Mozilla Public License - * Version 1.1 (the "License"); you may not use this file except in - * compliance with the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY - * OF ANY KIND, either express or implied. See the LGPL or the MPL for - * the specific language governing rights and limitations. - * - * Contributor(s): - * Alexandros Frantzis <alexandros.frantzis@linaro.org> - */ - -#include "cairoint.h" -#include "cairo-gl-private.h" -#include "cairo-gl-dispatch-private.h" -#if CAIRO_HAS_DLSYM -#include <dlfcn.h> -#endif - -#if CAIRO_HAS_DLSYM -static void * -_cairo_gl_dispatch_open_lib (void) -{ - return dlopen (NULL, RTLD_LAZY); -} - -static void -_cairo_gl_dispatch_close_lib (void *handle) -{ - dlclose (handle); -} - -static cairo_gl_generic_func_t -_cairo_gl_dispatch_get_proc_addr (void *handle, const char *name) -{ - return (cairo_gl_generic_func_t) dlsym (handle, name); -} -#else -static void * -_cairo_gl_dispatch_open_lib (void) -{ - return NULL; -} - -static void -_cairo_gl_dispatch_close_lib (void *handle) -{ - return; -} - -static cairo_gl_generic_func_t -_cairo_gl_dispatch_get_proc_addr (void *handle, const char *name) -{ - return NULL; -} -#endif /* CAIRO_HAS_DLSYM */ - - -static void -_cairo_gl_dispatch_init_entries (cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr, - cairo_gl_dispatch_entry_t *entries, - cairo_gl_dispatch_name_t dispatch_name) -{ - cairo_gl_dispatch_entry_t *entry = entries; - void *handle = _cairo_gl_dispatch_open_lib (); - - while (entry->name[CAIRO_GL_DISPATCH_NAME_CORE] != NULL) { - void *dispatch_ptr = &((char *) dispatch)[entry->offset]; - const char *name = entry->name[dispatch_name]; - - /* - * In strictly conforming EGL implementations, eglGetProcAddress() can - * be used only to get extension functions, but some of the functions - * we want belong to core GL(ES). If the *GetProcAddress function - * provided by the context fails, try to get the address of the wanted - * GL function using standard system facilities (eg dlsym() in *nix - * systems). - */ - cairo_gl_generic_func_t func = get_proc_addr (name); - if (func == NULL) - func = _cairo_gl_dispatch_get_proc_addr (handle, name); - - *((cairo_gl_generic_func_t *) dispatch_ptr) = func; - - ++entry; - } - - _cairo_gl_dispatch_close_lib (handle); -} - -static cairo_status_t -_cairo_gl_dispatch_init_buffers (cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr, - int gl_version, cairo_gl_flavor_t gl_flavor) -{ - cairo_gl_dispatch_name_t dispatch_name; - - if (gl_flavor == CAIRO_GL_FLAVOR_DESKTOP) - { - if (gl_version >= CAIRO_GL_VERSION_ENCODE (1, 5)) - dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - else if (_cairo_gl_has_extension ("GL_ARB_vertex_buffer_object")) - dispatch_name = CAIRO_GL_DISPATCH_NAME_EXT; - else - return CAIRO_STATUS_DEVICE_ERROR; - } - else if (gl_flavor == CAIRO_GL_FLAVOR_ES3) - { - dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - } - else if (gl_flavor == CAIRO_GL_FLAVOR_ES2 && - gl_version >= CAIRO_GL_VERSION_ENCODE (2, 0)) - { - dispatch_name = CAIRO_GL_DISPATCH_NAME_ES; - } - else - { - return CAIRO_STATUS_DEVICE_ERROR; - } - - _cairo_gl_dispatch_init_entries (dispatch, get_proc_addr, - dispatch_buffers_entries, dispatch_name); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_gl_dispatch_init_shaders (cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr, - int gl_version, cairo_gl_flavor_t gl_flavor) -{ - cairo_gl_dispatch_name_t dispatch_name; - - if (gl_flavor == CAIRO_GL_FLAVOR_DESKTOP) - { - if (gl_version >= CAIRO_GL_VERSION_ENCODE (2, 0)) - dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - else if (_cairo_gl_has_extension ("GL_ARB_shader_objects")) - dispatch_name = CAIRO_GL_DISPATCH_NAME_EXT; - else - return CAIRO_STATUS_DEVICE_ERROR; - } - else if (gl_flavor == CAIRO_GL_FLAVOR_ES3) - { - dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - } - else if (gl_flavor == CAIRO_GL_FLAVOR_ES2 && - gl_version >= CAIRO_GL_VERSION_ENCODE (2, 0)) - { - dispatch_name = CAIRO_GL_DISPATCH_NAME_ES; - } - else - { - return CAIRO_STATUS_DEVICE_ERROR; - } - - _cairo_gl_dispatch_init_entries (dispatch, get_proc_addr, - dispatch_shaders_entries, dispatch_name); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_gl_dispatch_init_fbo (cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr, - int gl_version, cairo_gl_flavor_t gl_flavor) -{ - cairo_gl_dispatch_name_t dispatch_name; - - if (gl_flavor == CAIRO_GL_FLAVOR_DESKTOP) - { - if (gl_version >= CAIRO_GL_VERSION_ENCODE (3, 0) || - _cairo_gl_has_extension ("GL_ARB_framebuffer_object")) - dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - else if (_cairo_gl_has_extension ("GL_EXT_framebuffer_object")) - dispatch_name = CAIRO_GL_DISPATCH_NAME_EXT; - else - return CAIRO_STATUS_DEVICE_ERROR; - } - else if (gl_flavor == CAIRO_GL_FLAVOR_ES3) - { - dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - } - else if (gl_flavor == CAIRO_GL_FLAVOR_ES2 && - gl_version >= CAIRO_GL_VERSION_ENCODE (2, 0)) - { - dispatch_name = CAIRO_GL_DISPATCH_NAME_ES; - } - else - { - return CAIRO_STATUS_DEVICE_ERROR; - } - - _cairo_gl_dispatch_init_entries (dispatch, get_proc_addr, - dispatch_fbo_entries, dispatch_name); - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_cairo_gl_dispatch_init_multisampling (cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr, - int gl_version, - cairo_gl_flavor_t gl_flavor) -{ - /* For the multisampling table, there are two GLES versions of the - * extension, so we put one in the EXT slot and one in the real ES slot.*/ - cairo_gl_dispatch_name_t dispatch_name = CAIRO_GL_DISPATCH_NAME_CORE; - if (gl_flavor == CAIRO_GL_FLAVOR_ES2) { - if (_cairo_gl_has_extension ("GL_EXT_multisampled_render_to_texture")) - dispatch_name = CAIRO_GL_DISPATCH_NAME_EXT; - else if (_cairo_gl_has_extension ("GL_IMG_multisampled_render_to_texture")) - dispatch_name = CAIRO_GL_DISPATCH_NAME_ES; - } - _cairo_gl_dispatch_init_entries (dispatch, get_proc_addr, - dispatch_multisampling_entries, - dispatch_name); - return CAIRO_STATUS_SUCCESS; -} - -cairo_status_t -_cairo_gl_dispatch_init (cairo_gl_dispatch_t *dispatch, - cairo_gl_get_proc_addr_func_t get_proc_addr) -{ - cairo_status_t status; - int gl_version; - cairo_gl_flavor_t gl_flavor; - - gl_version = _cairo_gl_get_version (); - gl_flavor = _cairo_gl_get_flavor (); - - status = _cairo_gl_dispatch_init_buffers (dispatch, get_proc_addr, - gl_version, gl_flavor); - if (status != CAIRO_STATUS_SUCCESS) - return status; - - status = _cairo_gl_dispatch_init_shaders (dispatch, get_proc_addr, - gl_version, gl_flavor); - if (status != CAIRO_STATUS_SUCCESS) - return status; - - status = _cairo_gl_dispatch_init_fbo (dispatch, get_proc_addr, - gl_version, gl_flavor); - if (status != CAIRO_STATUS_SUCCESS) - return status; - - status = _cairo_gl_dispatch_init_multisampling (dispatch, get_proc_addr, - gl_version, gl_flavor); - if (status != CAIRO_STATUS_SUCCESS) - return status; - - return CAIRO_STATUS_SUCCESS; -} |